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SCHEDULE_HRTIMEOUT(9) Driver Basics SCHEDULE_HRTIMEOUT(9)

NAME

schedule_hrtimeout - sleep until timeout

SYNOPSIS

int __sched schedule_hrtimeout(ktime_t * expires, const enum hrtimer_mode mode);

ARGUMENTS

expires
timeout value (ktime_t)
mode
timer mode, HRTIMER_MODE_ABS or HRTIMER_MODE_REL

DESCRIPTION

Make the current task sleep until the given expiry time has elapsed. The routine will return immediately unless the current task state has been set (see set_current_state).
You can set the task state as follows -
 
TASK_UNINTERRUPTIBLE - at least timeout time is guaranteed to pass before the routine returns.
 
TASK_INTERRUPTIBLE - the routine may return early if a signal is delivered to the current task.
The current task state is guaranteed to be TASK_RUNNING when this routine returns.
Returns 0 when the timer has expired otherwise -EINTR

COPYRIGHT

February 2017 Kernel Hackers Manual 3.16